Combination check and stop valve.



M. MAKOWSKY.

COMBINATION CHECK AND STOP VALVE.

APPLICATION rmzn JULY 25, 1912.

1,072,245 Patented Sept. 2, 1913.

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MICHAEL MAKOWSKY, OF PASSAIC, NEW JERSEY.

COMBINATION CHECK AND STOP VALVE.

Specification of Letters latent.

Application filed July 25, 1912.

To all whom it may concern Be it known that I, MIorIAuL MAKOWSKY, acitizen of the United States, residing at Passaic, in the county ofIassaic and State of New Jersey, have invented new and usefulImprovements in Combination Check and Stop Valves, of which thefollowing is a specification.

The general object of the invention is to embody in a unitary structurethe usual devices which are at present employed for controlling thepassage of the feed water to and from a point where such water is to beused, such as a steam boiler. And to this end the invention consists inconnecting a stop and a check valve in a peculiarly constructed pipefitting or coupler.

Other objects will appear and be better understood from that embodimentof my invention of which the following is a specification, referencebeing had to the accompanying drawings forming part hereof, in whichFigure 1 is a View partly in side elevation and vertical section showingthe device in use. Fig. 2 is a vertical cross section on the line 22 ofFig. 1.

The fitting designated generally by a may be of any metal found suitablefor the purpose such as brass, and the several parts of this fitting maybe of castings or the said parts may be machined or the fitting may bemade up of cast and machined parts.

Any preferred or ordinary form of connection which will admit of theparts being readily detached whenever desired such as interfitting screwthreaded portions 55, may be used for connecting the passages 6-6 of thecoupler 7 with the feed water pipe sections 8-8. So too, may anypreferred or well-known form of connection such as screw threadedportions 9, be employed for connecting the valve bonnet 10 with thechamber 11 arranged in angular relation to the passages 6-6.

The partition 12 which separates one of the passages 6 from the valvechamber 11, has a port 13 provided with a valve seat for the stop valvelt which is operated by the stem 15 and handle 16 to controlcommunication between the passage 6 and chamber 11 through the port 13.

The partition 17 which divides the passages 66 and one of these from thechamber 11, has a port 18 leading from the chamber 11 into one of thepassages 6 and this port. has a valve seat for a pivotally mounted checkvalve 19 arranged to be operated by gravity and to yield or open underpressure in the chamber 11, but to close when the head or pressure inthe chamber 11 is less than that in the passage 6 on the left in Fig. 1.

A passage 20 arranged in oblique alincment to the check valve 19, servesas a handhole through which access may be had to the check valve 19whenever it is desired to remedy any defect in the operation of thecheck valve or to admit of mounting this element on or dismounting itfrom the pivot pin 21. The threaded plug 22 is adapted to be screwedinto the passage 20 so as to seal the same when the device is in use, asshown in Fig. 1.

In use and with the stop valve 1 1 open, the water passes through thepipe section on the right in Fig. 1 into the adjacent passage 6 fromwhich it rises through the port 13 into the chamber 11 and thence passesthrough the port 18 and by the check valve 19 into the passage 6 on theleft in Fig. 1 and into the adjacent pipe section 8 and from there tothe boiler (not shown) or other point of use. lVhen the pressure on thewater in the boiler is such as to cause the water to back into thepassage 6 on the left in Fig. 1, then the check valve will close andprevent the passage of such back water into the pipe section 8.

In the structure just described it will be observed that the arrangementand construction of the several parts are such as to render the devicecheaper and none the less efiective than two fittings, one of whichcontains the stop and the other the check valve.

WVhat is claimed as new is:

A valve comprising a casing having an inlet opening and an outletopening, a partition located in the casing between said openings anddisposed transversely thereof, a second partition extending from thefirst mentioned partition to the side of the casing and at one side ofthe inlet opening, the second mentioned partition being provided tonormally close the opening in the first mentioned partition.

In testimony whereof I affix my signature in presence of tWo itnesses.

MICHAEL 'MAKOVVSKY.

With an opening, a positively movable valve adapted to close saidopening, the first mentioned partition having at a point above thesecond mentioned partition an opening, and a check valve pivotallymounted upon the first mentioned partition at the side op- Witnesses:posite the side thereof adjacent Which the Tnno. LIPINSKY, firstmentioned valve is locatedand adapted Gno. A. BYRNE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

